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Oxidative Stress

Formation of Reactive Oxygen Species in L929 Cells after Exposure to 900 MHz RF Radiation with and without Co-exposure to 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone.

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Zeni, O., Di Pietro, R., d'Ambrosio, G., Massa, R., Capri, M., Naarala, J., Juutilainen, J. and Scarfi, M. R. · 2007

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Cell phone frequency radiation at typical exposure levels did not create harmful reactive oxygen species in cells, unlike a known chemical carcinogen.

Plain English Summary

Summary written for general audiences

Researchers exposed mouse cells to 900 MHz cell phone radiation for up to 30 minutes to test whether it creates harmful molecules called reactive oxygen species. The radiation did not increase these damaging molecules at any exposure level tested, suggesting no immediate cellular harm.

Why This Matters

This study provides important evidence that cell phone frequency radiation at typical exposure levels does not trigger oxidative stress in cells. The exposure levels tested (0.3-1 W/kg SAR) are comparable to what your head experiences during a phone call, where SAR limits are set at 1.6 W/kg in the US. What makes this research particularly valuable is its rigorous design - the researchers tested both continuous wave and actual GSM phone signals, used proper sham controls, and even tested whether RF might amplify the effects of a known carcinogen. The negative results here align with a substantial body of research showing that RF radiation at these power levels doesn't directly cause the kind of cellular damage that leads to cancer. However, this single study doesn't settle the broader question of long-term health effects from chronic exposure, and the science on other biological mechanisms continues to evolve.

Exposure Details

SAR
0.3, 1 W/kg
Source/Device
900 MHz
Exposure Duration
10 or 30 min

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 0.3, 1 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 5x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The aim of this study was to investigate the induction of reactive oxygen species in murine L929 fibrosarcoma cells exposed to radiofrequency (RF) radiation at 900 MHz, with or without co-exposure to 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX), a potent environmental carcinogen produced during chlorination of drinking water.

Both continuous-wave and GSM mobile phone signals were applied for 10 or 30 min at specific absorpti...

The studied provided no indication that 900 MHz RF-field exposure, either alone or in combination wi...

In contrast, exposure to MX resulted in a statistically significant increase in the formation of reactive oxygen species for all the treatment durations investigated, confirming that MX is an inductor of oxidative stress in L929 cells.

Cite This Study
Zeni, O., Di Pietro, R., d'Ambrosio, G., Massa, R., Capri, M., Naarala, J., Juutilainen, J. and Scarfi, M. R. (2007). Formation of Reactive Oxygen Species in L929 Cells after Exposure to 900 MHz RF Radiation with and without Co-exposure to 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone. Radiat. Res. 167, 306-311, 2007.
Show BibTeX
@article{zeni_2007_formation_of_reactive_oxygen_583,
  author = {Zeni and O. and Di Pietro and R. and d'Ambrosio and G. and Massa and R. and Capri and M. and Naarala and J. and Juutilainen and J. and Scarfi and M. R.},
  title = {Formation of Reactive Oxygen Species in L929 Cells after Exposure to 900 MHz RF Radiation with and without Co-exposure to 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone.},
  year = {2007},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/17316071/},
}
PubMed: 17316071

Cited By (50 papers)

Quick Questions About This Study

No, a 2007 study found that 900 MHz cell phone radiation did not increase reactive oxygen species formation in L929 mouse cells during exposures up to 30 minutes. The radiation showed no immediate cellular harm at any tested exposure level.
Research on L929 mouse cells showed no cellular damage from 30-minute exposures to 900 MHz radiation. The study found no increase in harmful reactive oxygen species formation, suggesting no immediate oxidative stress or cellular harm.
A 2007 study tested 900 MHz radiation combined with the chemical MX in mouse cells. While MX alone caused significant oxidative stress, adding the radiation did not increase cellular damage beyond MX's effects.
L929 mouse cells showed no sensitivity to 900 MHz radiofrequency exposure in laboratory testing. Researchers found no formation of reactive oxygen species or oxidative stress markers after radiation exposure up to 30 minutes.
Research indicates L929 mouse cells can be exposed to 900 MHz radiation for at least 30 minutes without developing oxidative damage. The study found no reactive oxygen species formation at any tested duration.